bodywerks - my BME setup WAS nearly identical to yours, error-wise, but messing with the pushrod length and sub trims AFTER setting max atv got me there. It was trial and error, and the BME aren't turnbuckles, so I must have installed and removed each elevator ball link from the Airwild arm a dozen times. But -- in the end -- they are VERY, very close. Not actually "perfect" but HUGELY better than at start up.

Knowing the "subtrims v.s. pushrod length" deal unlocked the puzzle for me!